Our food production productivity is growing so much faster than global population that all the people fretting about over-population are just a bunch of ninnies.

Ah, but the devil's in the details.

Take a close look at that chart, and what you'll find is that the rate of growing productivity has slowed dramatically in the past couple of decades, to the point where it is closing in on the population growth rate.

It shows that the growth of crop productivity and the growth of population have gradually converged over the past few decades... and that the lines might be about to cross.

And you don't need to have a PhD to figure out what happens if they do cross.

On a finite planet, with finite supplies of fields and finite supplies of raw materials for fertilizers, we cannot continue to make enough food to feed an infinite population. So the only question about overpopulation being a problem is not if, but when.